Google Health has announced upcoming enhancements for its rebranded app, focusing on workout tracking, sleep metrics, and connectivity with Fitbit Air. Improvements will include fixes for sleep scores, customization options for Health dashboards, enhancements to automatic workout detection, and a new 24-hour sleep view. The app allows users to delete logs via the Ask Coach feature and aims to correct misclassified workouts. The timeline for these updates is not confirmed, but they are expected to be implemented soon following user feedback after the app's launch.